可接受噪音水平受竞争性谈话者数量的影响吗?信息屏蔽和倾听对可接受噪音水平机制的影响

IF 0.4 Q4 AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY
Mostafa Tavakoli, Hamid Jalilvand, Mohammad Ebrahim Mahdavi, Alireza Akbarzadeh Baghban
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引用次数: 0

摘要

背景和目的:可接受噪音水平(ANL)是定量评估噪音耐受性的有效临床工具,但它会受到与受试者和测试材料有关的一些已知变量的影响。本研究探讨了不同咿呀声的特点会如何影响正常成年听者的可接受噪音水平结果。研究方法40 名听力正常的波斯听众参加了研究。除了使用 12 个说话者的典型 ANL 测试外,还在 8 种不同的条件下获得了 ANL,这些条件是在咿呀噪音中向前和向后呈现 2 到 10 个说话者。结果显示在正向和反向噪音条件下,与 4、8、10 和 12 人咿呀学语相比,2 人咿呀学语的 ANL 明显较低。随着噪音中说话者的增加,ANL 越来越低,但当咿呀噪音中的说话者超过 4 个时,ANL 几乎达到了平稳状态。在统计意义上,2 个说话者的前向噪音和 2 个说话者的后向噪音之间存在显著差异,而其他条件下则没有差异。结论ANL受咿呀学语噪声中说话者的数量以及前向和后向背景噪声的影响,这一发现表明,至少对于听力正常的人来说,信息掩蔽和倾听机制参与了ANL。关键词可接受噪声级;咿呀学语噪声;倾听;信息掩蔽;能量掩蔽
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Is Acceptable Noise Level Affected by the Number of Competitive Talkers? An Implication of Informational Masking and Listening in Dips for Acceptable Noise Level Mechanism
Background and Aim: The Acceptable Noise Level (ANL), which is an effective  clinical tool for quantitative assessment of noise tolerance, is affected by some known variables related to both subject and testing materials. The present study examined how the characteristics of different babble noises may affect the ANL results in normal adult listeners. Methods: Forty Persian listeners with normal hearing participated. In addition to typical ANL testing with 12-talker noise, the ANL was obtained in 8 different conditions varying in number of talkers from 2 to 10 in the babble noises presenting forward and backward. Results: There was a significantly lower ANL for 2-talker babble compared to 4, 8, 10, and 12-talker babble in both forward and backward noise conditions. With the increase in talkers in noise, the ANL becomes worse but reaches almost a plateau with more than 4 talkers in babble noise. There was a statistically significant difference between 2-talker forward and 2-talker backward noises, with no difference for the other conditions. Conclusion: This finding that the ANL is affected by the number of talkers in babble noise and by the forward and backward background noise suggests that informational masking and listening in dip mechanisms are involved in ANL for normal hearing people at least. Keywords: Acceptable noise level; speech babble noise; listening in dips; informational masking; energetic masking  
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来源期刊
Auditory and Vestibular Research
Auditory and Vestibular Research Medicine-Otorhinolaryngology
CiteScore
0.60
自引率
20.00%
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0
审稿时长
12 weeks
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